HomeHacker News Show HN: Are you playing your violin (viola, guitar, etc.) in tune? https://ift.tt/3omRHNX byHat hair -January 26, 2021 0 Show HN: Are you playing your violin (viola, guitar, etc.) in tune? https://ift.tt/38irTMS January 26, 2021 at 10:55PM Tags: Hacker News Facebook Twitter